Pumping valve mechanism.



E. A. STU-BLSB. PUMPING VALVE MEGHANISM.

APPLIOATION HLBD 111111.17, 1901.

1 Patented Apr. 27, 1909.

2 SHEETS-SHEET 1.

HIE!!! lllll mlm 1| Mil ATTORNEY E. A. STUBLER. PUMPING VALVE MECHANISM.APPLICATION FILED APRA?, 1907.

2 SHEETS-SHEET 2.

Patented'Apr. 27, 1909 xW/TNES'FSgM? @1 I; @www ATTORNEY R5 co.,wAsHmcroN. n. cA

EDWARD A. STULER, 0F OIL CITY, PENNSYLVANIA.

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Specification ofcLetters Patent.

Patented April 27, 1909.

Application filed April 17, 1907. Serial No. 368,766.

To all whom it may concepiti Be it 'known thatI, EDWARD A. STUBLER, acitizen of the United States, residing` at @il City, in the county ofVenango and State of Pennsylvania, have invented certain ynew A anduseful Improvements in Pumping Valve Mechanism, of which the followingis a specification, reference being hadto'the accompanying drawings.` Y

My invention relates to valve mechanism used for pumping machinery, and`particularly to valve mechanism used for pumping machinery adapted forpumping oil from oil wells.

An object of my invention is to provide a valve mechanism ada ted vforuse With oil pumping machinery w ich will prove simple in construction,efiicient in operationand easily repaired in place.

Heretofore, so far as known to me, the valves for oil pumping machineryhave` been usually equipped with a ball valve. Such a valve has beenfound liable to stick at the top of the valve casing in the paraiiin andother sticky material which collects there in the ordinary working ofthe pump. Further, when the valve sticks in the paraffin, the airpressure upon the base of the bal holds it from its seat.

In carrying out my invention, I provide a valve having a iiattened topand form the valve casing with shoulders, against which the flattenedtop of the valve strikes'at the upper limit of its travel. Further, thevalve casing is formed with grooves, which extend above these shouldersand prevent the formation of a Vacuum. Further, in ball valves, thevalve becomes leaky through the uneven wear of the ball.

In carrying out my invention, I provide my valve with a guide-pin andthe valve seat with an aperture through which the guidepin passes,thereby insuring vuniform we ar of the valve.

In order to prevent foreign matter from gaining access to the barrel ofthe valve, I provide the barrel with a strainer.

When the packing of the plunger becomes worn, it has heretofore beennecessary to pull7 the valve. This 'is'a laborious and expensiveoperation. i In my new valve mechanism, means are provided whereby theplunger packing may-be expanded with the plunger in place, therebyavoiding this operation of pulling the valve. Y

The standing valveis provided with a pull rod, which extends up andthrough the barrel ofthe plunger, located above the standing valve.:

yIn the 'drawings illustrating the principle of my invention and thebest mode now known to me ofapplying that principle, Figure l is anelevation of my new valve mechanism.; Fig. 2 is a sectional elevation ofthe standing valve, the valve being shown seated; Fig. 3 is a detail ofthe valve seat; Fig. l is a sectional detail of the standing valve, thevalve being shown at the upper limit of its stroke; Fig. 5 is asectional detail of the lower portion of the plunger; Fig. 6 shows thepacking of the plunger and the expanding devices therefor Fig. 7 is asection on line AfA of Fig. 5; Fig. 8 is a section on line B-B of Fig.5; and Fig. 9 is a section on linel 0 0 of Fig. 2.

,Thel lower part of my new valve mechanism comprises the standing valvea, the casing of which is made up of three parts, b, c and d. The'lowest part d is screwed upon thelower end of the intermediate part c,which is formed with the shoulder e. Between the latter and the top ofthe part d are interposed packing rings f. The upper part t of thestanding valve casing is screwed upon 1the upper end of the intermediatecasing c; and in the latter is mounted a valve-seat, provided with anapertured disk g, best shown in Fig. 3. The disk g is pro- `vided withthe central hole h, and with six holes i, which adapt the disk to act asa strainer to intercept foreign matter. The centralholeh is adapted toreceive the guide pin y', which projects from the valve 7s. The baseofthe latter is rounded, but its top is fiat, and is 4adapted to abut inits travel against the interior shoulders in the inner top portion ofthe casing member b. The position ofthe valve 7c at the upper end of itstravel or stroke is'shown in Fig. 4. The upper casing member is formedwith grooves n, the top portion of which extend above the flat top faceof the valve c, when the latter is at the upper limit'of its travel, asis clearly shown in Fig. 4. This construction prevents a formation of avacuum above the valve k, at the upper limit of its travel or stroke,and prevents the sticking of the valve at that point. In the case ofball valves, it has been found that the valve would stick in theparaflin and'other material, which gathered in the chamber or recess atthe top of the upper casing but the flat top of the valve il coming incontact with the shoulders m prevents the sticking of the valve 76 bypreventing it from coming in contact with the parafiin or stickymaterial. Furthermore, since the ball-valve would iit snugly in theupper portion of the casing, a vacuum would be produced and the airpressure upon the bottom of the ball-valve tends to hold it from.becoming seated by its own weight. Further, the wear of the ball valveis uneven; but in my new valve, by reason of the provision of thecentral hole h and the guide-pin y', the valve is seated in the same wayeach time, and wear is uniform.

The plunger 0 is mounted above the standing valve a, and is litted withthe valve le, and the valve seat g, in all respects similar to the samemembers in the standing valve and the top of the valve strikes againstthe shoulders m, as in the case of the standing valve and for the samepurpose. The lower casing member p of the plunger is screwed into thetop of the tube g; while into the bottom of the latter screws a pipe r(Figs. 5 and 6). Over the latter are slipped sleeves s,wl1ich aremutilated cylinders, the beveled faces t of which rub against eachother. Each point u of the sleeve portions s is cut off at a distancefrom the cylindrical portion o of the coaoting sleeve, as is best shownin Fig. 6. This permits the sleeve portions to slide upon each otherwithout overlapping.

Upon the lower end of the pipe r is screwed a socketed clutch member wthe base of which is formed with holes n; which adapts the base to actas a strainer for the exclusion of foreign matter which would tend toclog the working of the valve. Projecting downwardly from thecylindrical wall of the clutch member w and integral therewith are theprongs y. The latter are adapted to enter the grooves n formed in theupper casing member b of the standing valve e to lock the lower part ofthe lunger against rotation. The clutch member 'w being in lockingengagement with the upper casing member b of the standing valve as shownin Fig. l, suitable turning mechanism is applied to the top a of theplunger o and the said valve is turned, thereby causing the tube g totravel upon the threaded eX- terior of the pipe 1" and to forcedownwardly the upper sleeve member s. As will be understood from Fig. 6,this movement of the upper sleeve member results in forcing outwardly orexpanding the packing rings 2. Hence, when these packing rings 2 becomeworn, it is not necessary to pull the valve mechanism; but by simplyturning the plunger after lowering it te bring the prongs y into lockingengagement with the walls of the grooves n in the standing valve, thepacking rings are expanded to make again an air tight iit with theworking barrel 3 of the well.

Should, for any reason, the tube (j stick fast and refuse to turn uponthe pipe r, the latter will feed downwardly into the threaded socket ofthe clutch member fui (Fig. :3), producing the same effect by causingthe inutilated sleeves s to slide past cach other and thereby increasethe diameter of the packing rings 2.

Screwed into the top of the standing valve is a pull-rod 4 formed withan enlarged head 5 (Fig. il). This pull-rod extends throughout theextent of the working valve. and is used to pull the standing valve.

l claim:

1. In a valve mechanism, the combination of a valve casing provided withshoulders which project inwardly from its inner walls below the topofthe chamber inclosed by said casing, and with openings above saidshoulders; and a valve having a ilattened top adapted to engage saidshoulders, said openings serving to prevent the formation of a vacuumand said shoulders preventing said valve from striking the top of saidchamber.

2. ln a valve mechanism, the combination with a standing valve, ol aplunger` provided 4with devices for interlocking thesamc; packingmounted on said plunger; a pair of roacting sleeves mounter. ee tosliderelatively to cach. other under said jmcking, said sleeves havingtheir opposed faces beveled; and mechanism for causing one of saidsleeves to move relatively to the other of said sleeves.

3. ln a valve mechanism, the combination with a standing valve, of aplunger made up of a plurality of parts, one of said parts being formedwith devices for interlocking with said standing valve; packingn'iounted between the parts of said plunger; a pipe mounted within saidpacking and having each of its ends connected with one of the parts ofsaid plunger; and packing-experi(ling devices mounted between said pipeand packing.

4. ln a valve mechanism, the. combination with a standing valve, of aplunger made up of a plurality of parts, one of said parts being formedwith devices for interlocking with said standing valve; packing mountedbetween the parts of said plunger; and a pair of sleeves mounted withinsaid packing, said sleeves having beveled faces and having eaeh an endopposed to an end of one of the parts of said plunger.

5. ln a valve mechanism, the combination of a valve casing provided withshoulders which project inwardly from its inner walls below the top ofthe chamber inclosed by said casing, and with openings above saidshoulders; a foraminated valve seat mounted in said casing; and a valvehaving a flattened top adapted to engage said shoulders; and having arounded base from which proj eets a stem into one of the apertures ofsaid valve seat; said openings serving to prevent the lll( formation ofa vacuum, and said shoulders l with one of the parts of said plunger;and peverlitiilg sid Valve from striking thetop peoking-ecpandingddevlices mounted beo sai( c am er. tween sai i e an ac in 6. In a Valvemechanism, the combination In testimloy whelieof I lgiereunto set my 15with a standing Valve, of a lunger made up hand in the presence of thetwo undersigned lof a pliralit o parts, (lgne ot saild plrts beinlg Iwitnesses, at said Oil City.

ormek wit .evices or inter oo ing wit T said standing valve; packingmounted be- EDWARD A' STUBLER' tween the parts of said plunger; a pipemounted within said packing and havingl each of its ends screw-threadedto enga-ge l Witnesses THOMAS A. ANDERTON, NELLIE CAVANAUGH.

